Loyalty app: update for everyday use

The app update revised web views, registration and double opt-in. Further improvements concerned performance and use of the digital loyalty card.

It described offline card access, increased screen brightness when displaying the card and a timestamp to distinguish screenshots. The splash screen was also updated. This announcement records the feature state in September 2025.

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Edited archive summary. Dates, offers and development plans refer to the situation at the original publication date.